Since its original publication in 1989, Evolution: The History of an Idea has been recognized as a comprehensive and authoritative source on the development and impact of this most controversial of scientific theories. This twentieth anniversary edition is updated with a new preface examining recent scholarship and trends within the study of evolution. "An up-to-date yet accessible introduction for the non-expert on the intellectual history of evolution and evolutionism." ― American Journal of Psychology "Clarity of purpose and powers of organization shine forth from every page." ― Times Literary Supplement "A rih and energetic survey of the history of evolutionary thought." ― Journal of the History of Medicine "This new edition makes an already excellent book even better." ― Quarterly Review of Biology "Combines skilled historical research with superior writing . . . synthesizing the complex, often emotion-filled strands of evolutionary theory into a noteworthy, updated whole." ― Science Teacher Peter J. Bowler is Professor emeritus of the History of Science at Queen's University, Belfast. He is a Member of the Royal Irish Academy and a Fellow of the American Association for the Advancement of Science. He was President of the British Society for the History of Science from 2003 to 2005.